A firm has determined its optimal capital structure which is composed of the following sources and target market value proportions. Long-Term Debt 20%, Preferred Stock 10%, Common Equity 70%

DEBT: The firm can sell a 12-year, $1,000 par value, 7 percent bond for $960. A flotation cost of 2 percent of the face value would be required in addition to the discount of $40.

PREFERRED STOCK: The firm has determined it can issue preferred stock at $75 per share par value. The stock will pay a $10 annual dividend. The cost of issuing and selling the stock is $3 per share.

COMMON STOCK: A firm's common stock is currently selling for $18 per share. The dividend expected to be paid at the end of the coming year is $1.74. Its dividend payments have been growing at a constant rate for the last five years. Five years ago, the dividend was $1.50. It is expected that to sell, a new common stock issue must be underpriced $1 per share in floatation costs. Additionally, the firm's marginal tax rate is 40 percent.

A. The firm's cost of debt is ______

B. The firm's cost of preferred stock is _________

C. The firm's cost of a new issue of common stock is ______

D. The firm's cost of retained earnings is ________

E. The weighted average cost of capital up to the point when retained earnings are exhausted is _________

F. The point when retained earnings are exhausted is ______

G. The weighted average cost of capital after all retained earnings are exhausted is ____________